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A radar pre-power inspection checks the housing, cable entries, antenna area and process connection before electrical testing begins. Record and resolve visible damage or uncertain assembly details before energising. Do not remove an unfamiliar antenna part merely because it looks like transport protection.
Distinguish transport protection from functional parts
Check the delivery instructions for any temporary protection that must be removed. Do not assume every cap, film or plastic component is packaging: a lens, radome or sealing component may be essential to the instrument. If its purpose is unclear, photograph it and obtain confirmation for the exact assembly.
Compare the received model and connection with the approved order before installation evidence is lost. Record impact damage, deformed threads and displaced parts. A unit that can be screwed into the nozzle is not necessarily the specified connection or an acceptable pressure boundary.
| Inspection point | Condition to resolve before power-up |
|---|---|
| Housing closure | Trapped conductors, dirt on sealing surfaces or a cover that does not seat as specified. |
| Cable entry | Wrong entry thread, unsuitable cable diameter, missing sealing parts or an unused opening. |
| Antenna area | Visible damage, debris or uncertain transport protection requiring model-specific clarification. |
| Process mounting | Unconfirmed joint components, mechanical strain or an installation that differs from the drawing. |
Keep water outside during the radar pre-power inspection
Confirm that the cable-entry arrangement suits the selected enclosure and the outdoor or washdown exposure. A gland must seal on the intended cable surface; several loose conductors through a gland do not form the same seal as a correctly sized cable. Use approved blanking components for unused entries.
The METRAVON MV-RD12 product information distinguishes metal IP67 and ABS IP65 housing options. Those labels do not compensate for an incorrectly closed housing or unsuitable entry. Verify the delivered enclosure and its assembly instructions rather than assigning one rating to every MV-RD12 configuration.
Separate inspection from electrical testing
With qualified personnel following the site's isolation procedure, confirm the selected supply and terminal arrangement before energising. Do not apply a generic insulation-test voltage through connected electronics. If cable insulation testing is required, use the instrument instructions and the approved method for isolating sensitive equipment.
Retain photographs of the completed entry and mounting. They provide a baseline if condensation, corrosion or loose wiring appears later. Record any unresolved assembly question as a hold point, not as a note to investigate after the tank is in service.
Q1. Can sealant repair a damaged gland or housing cover?
Not as an assumed substitute for the specified components. An improvised repair may hide the defect without restoring enclosure or hazardous-area suitability. Obtain the approved repair or replacement.
Q2. Does a dry terminal compartment prove the installation is weatherproof?
No. It describes the condition at inspection. Entry selection, cable routing and closure determine whether that condition is likely to be maintained.
Summary
Resolve visible assembly defects before starting signal tests. Send the MV-RD12 identification and photographs of any uncertain component for clarification before energising or modifying it.
